More than 400 patients were waiting for beds in Irish hospitals on Friday morning, according to figures from the Irish Nurses and Midwives Organisation (INMO).
The union's daily update on hospital overcrowding said 283 patients were waiting in emergency departments, while 119 were in wards elsewhere in hospitals.
The most overcrowded hospital on Friday, according to the INMO, was University Hospital Limerick (UHL), where 107 patients were waiting for a bed. University Hospital Galway (UHG) followed, with 57 patients waiting on trolleys.
According to the Health Service Executive's own figures, 293 people were waiting on trolleys across HSE-run hospitals on Friday.
There were 71 patients waiting in UHL and 36 in UHG. Sligo University Hospital had 26 patients waiting for a free bed, according to the HSE's daily urgent and emergency care report.
The HSE figures include patients waiting on a hospital trolley or extra bed placed in an inappropriate space in a hospital ward.
In addition to those in wards, the INMO also counts patients placed on corridors or chairs elsewhere in hospitals while waiting for admission to a bed.